<template>
  <div :class="className" :style="{ height: height, width: width }" />
</template>

<script>
import * as echarts from "echarts";
require("echarts/theme/macarons"); // echarts theme
// import { debounce } from "@/utils";

export default {
  props: {
    className: {
      type: String,
      default: "chart",
    },
    width: {
      type: String,
      default: "100%",
    },
    height: {
      type: String,
      default: "300px",
    },
    chartData: {
      type: Array,
      required: true,
    },
  },
  data() {
    return {
      chart: null,
    };
  },
  // 组件属性监视
  watch: {
    // 监视chart的数据
    chartData: {
      deep: true,
      handler(val) {
        this.setOption(val);
      },
    },
  },

  mounted() {
    this.initChart();
    /*     this.__resizeHandler = debounce(() => {
      if (this.chart) {
        this.chart.resize();
      }
    }, 100);
    window.addEventListener("resize", this.__resizeHandler); */
  },
  beforeDestroy() {
    if (!this.chart) {
      return;
    }
    window.removeEventListener("resize", this.__resizeHandler);
    this.chart.dispose();
    this.chart = null;
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, "macarons");
      this.setOption(this.chartData);
    },
    setOption(data) {
      this.chart.setOption({
        tooltip: {
          trigger: "item",
          formatter: "{a} <br/>{b} : {c} ({d}%)",
          textStyle: {
            color: "#fff",
          },
        },
        legend: {
          left: "center",
          bottom: "10",
          // data: ["Industries", "Technology", "Forex", "Gold", "Forecasts"],
        },
        calculable: true,
        series: [
          {
            name: "WEEKLY WRITE ARTICLES",
            type: "pie",
            roseType: "radius",
            radius: [15, 95],
            center: ["50%", "38%"],
            data: data,
            /* [
              { value: "320", name: "Industries" },
              { value: "240", name: "Technology" },
              { value: "149", name: "Forex" },
              { value: "100", name: "Gold" },
              { value: "59", name: "Forecasts" },
            ], */
            animationEasing: "cubicInOut",
            animationDuration: 2600,
          },
        ],
      });
    },
  },
};
</script>
